issn 2009-4086 national parks and wildlife service · conservation objectives for : glenomra wood...

Conservation Objectives Series

National Parks and Wildlife Service

Glenomra Wood SAC 001013

ISSN 2009-4086

19 Jun 2018 of 8 Version 1

National Parks and Wildlife Service,Department of Culture, Heritage and the Gaeltacht,

90 King Street North, Dublin 7, D07 N7CV, Ireland.

Web: www.npws.ieE-mail: [email protected]

Citation:

ISSN 2009-4086Series Editor: Rebecca Jeffrey

NPWS (2018) Conservation Objectives: Glenomra Wood SAC 001013. Version 1. National Parks and Wildlife Service, Department of Culture, Heritage and the Gaeltacht.


Introduction

European and national legislation places a collective obligation on Ireland and its citizens to maintain habitats and species in the Natura 2000 network at favourable conservation condition. The Government and its agencies are responsible for the implementation and enforcement of regulations that will ensure the ecological integrity of these sites.

A site-specific conservation objective aims to define favourable conservation condition for a particular habitat or species at that site.

Favourable conservation status of a habitat is achieved when: • its natural range, and area it covers within that range, are stable or increasing, and • the specific structure and functions which are necessary for its long-term maintenance exist and are likely to continue to exist for the foreseeable future, and • the conservation status of its typical species is favourable.

The favourable conservation status of a species is achieved when: • population dynamics data on the species concerned indicate that it is maintaining itself on a long-term basis as a viable component of its natural habitats, and • the natural range of the species is neither being reduced nor is likely to be reduced for the foreseeable future, and • there is, and will probably continue to be, a sufficiently large habitat to maintain its populations on a long-term basis.

The overall aim of the Habitats Directive is to maintain or restore the favourable conservation status of habitats and species of community interest. These habitats and species are listed in the Habitats and Birds Directives and Special Areas of Conservation and Special Protection Areas are designated to afford protection to the most vulnerable of them. These two designations are collectively known as the Natura 2000 network.

The maintenance of habitats and species within Natura 2000 sites at favourable conservation condition will contribute to the overall maintenance of favourable conservation status of those habitats and species at a national level.

1. The targets given in these conservation objectives are based on best available information at the time of writing. As more information becomes available, targets for attributes may change. These will be updated periodically, as necessary.2. An appropriate assessment based on these conservation objectives will remain valid even if the targets are subsequently updated, providing they were the most recent objectives available when the assessment was carried out. It is essential that the date and version are included when objectives are cited.3. Assessments cannot consider an attribute in isolation from the others listed for that habitat or species, or for other habitats and species listed for that site. A plan or project with an apparently small impact on one attribute may have a significant impact on another.4. Please note that the maps included in this document do not necessarily show the entire extent of the habitats and species for which the site is listed. This should be borne in mind when appropriate assessments are being carried out.5. When using these objectives, it is essential that the relevant backing/supporting documents are consulted, particularly where instructed in the targets or notes for a particular attribute.

Notes/Guidelines:


Qualifying Interests

Glenomra Wood SAC

* indicates a priority habitat under the Habitats Directive

001013

91A0 Old sessile oak woods with Ilex and Blechnum in the British Isles


Supporting documents, relevant reports & publications

Year : 2002

Title : Reversing the habitat fragmentation of British woodlands

Author : Peterken, G.

Series : WWF-UK, London

Supporting documents, NPWS reports and publications are available for download from: www.npws.ie/Publications

Year : 1972

Title : A preliminary report on Areas of Scientific Interest in County Clare

Author : Goodwillie, R.N.

Series : Unpublished report

Year : 2008

Title : National survey of native woodlands 2003-2008

Author : Perrin, P.M.; Martin, J.; Barron, S.; O'Neill, F.H.; McNutt, K.E.; Delaney, A.

Series : Unpublished report to NPWS

Year : 2010

Title : A provisional inventory of ancient and long-established woodland in Ireland

Author : Perrin, P.M.; Daly, O.H.

Series : Irish Wildlife Manual No. 46

Other References

NPWS Documents


Spatial data sourcesYear : Revision 2010

Title : National Survey of Native Woodlands 2003-2008. Version 1

GIS Operations : QI selected; clipped to SAC boundary. Expert opinion used as necessary to resolve any issues arising

Used For : 91A0 (map 2)


Conservation Objectives for : Glenomra Wood SAC [001013]


To maintain the favourable conservation condition of Old sessile oak woods with Ilex and Blechnum in the British Isles in Glenomra Wood SAC, which is defined by the following list of attributes and targets:

Attribute Measure Target NotesHabitat area Hectares Area stable or increasing,

subject to natural processes. See map 2 for surveyed woodland area

Old sessile oak woods with Ilex and Blechnum in the British Isles is present in Glenomra Wood and occurs in association with small areas of alluvial woodland and bog woodland in Glenomra Wood SAC. As part of the National Survey of Native Woodlands (NSNW), Glenomra Wood (NSNW site code 1555) was surveyed by Perrin et al. (2008). Map 2 shows the surveyed woodland (44.3ha) within the SAC

Habitat distribution

Occurrence No decline, subject to natural processes. The surveyed woodland is shown on map 2

Distribution based on Perrin et al. (2008)

Woodland size Hectares Area stable or increasing. Where topographically possible, "large" woods at least 25ha in size and “small” woods at least 3ha in size

The target areas for individual woodlands aim to reduce habitat fragmentation and benefit those species requiring ‘deep’ woodland conditions (Peterken, 2002). In some cases, topographical constraints may restrict expansion

Woodland structure: cover and height

Percentage and metres Diverse structure with a relatively closed canopy containing mature trees; subcanopy layer with semi-mature trees and shrubs; and well-developed herb layer

Described in Perrin et al. (2008)

Woodland structure: community diversity and extent

Hectares Maintain diversity and extent of community types

Described in Perrin et al. (2008)

Woodland structure: natural regeneration

Seedling:sapling:pole ratio

Seedlings, saplings and pole age-classes occur in adequate proportions to ensure survival of woodland canopy

Sessile oak (Quercus petraea) generally regenerates poorly. In suitable sites, ash (Fraxinus excelsior) can regenerate in large numbers although few seedlings reach pole size

Woodland structure: dead wood

m³ per hectare; number per hectare

At least 30m³/ha of fallen timber greater than 10cm diameter; 30 snags/ha; both categories should include stems greater than 40cm diameter

Dead wood is a valuable resource and an integral part of a healthy, functioning woodland ecosystem

Woodland structure: veteran trees

Number per hectare No decline Mature and veteran trees are important habitats for bryophytes, lichens, saproxylic organisms and some bird species. Their retention is important to ensure continuity of habitats/niches and propagule sources

Woodland structure: indicators of local disctinctiveness

Occurrence No decline Includes ancient or long-established woodlands (Perrin and Daly, 2010), archaeological and geological features as well as red data and other rare or localised species

Vegetation composition: native tree cover

Percentage No decline. Native tree cover not less than 95%

Species reported in Perrin et al. (2008)

Vegetation composition: typical species

Occurrence A variety of typical native species present, depending on woodland type, including sessile oak (Quercus petraea) and birch (Betula pubescens)

Species reported in Perrin et al. (2008). See also Goodwillie (1972)


Vegetation composition: negative indicator species

Occurrence Negative indicator species, particularly non-native invasive species, absent or under control

The following are the most common non-native invasive species in this woodland type: beech (Fagus sylvatica), sycamore (Acer pseudoplatanus) and rhododendron (Rhododendron ponticum). No non-native species were reported from Glenomra Wood (NSNW site code 1555) by Perrin et al. (2008)


© Ordnance Survey Ireland

Map Version 1Date: June 2018

MAP 1:GLENOMRA WOOD SAC

CONSERVATION OBJECTIVESSAC DESIGNATION

Map to be read in conjunction with the NPWS Conservation Objectives Document.

The mapped boundaries are of an indicative and general nature only. Boundaries of designated areas are subject to revision.Ordnance Survey of Ireland Licence No EN 0059216. © Ordnance Survey of Ireland Government of Ireland

Níl sna teorainneacha ar na léarscáileanna ach nod garshuiomhach ginearálta. Féadfar athbhreithnithe a déanamh ar theorainneacha na gceantarcomharthaithe. Suirbhéarachta Ordonáis na hÉireann Ceadúnas Uimh EN 0059216. © Suirbhéarachta Ordonáis na hÉireann Rialtas na hÉireann

±0 60 120 180 240 300Meters

SITE CODE:SAC 001013; version 3.02 . CO. CLARE

Legend


Kilbane

Kilmore

Killaloe

Newport

CO. CLARE

CO. LIMERICK

SAC 001013

Ordnance Survey Ireland, © Ordnance Survey Ireland

Map Version 1Date: June 2018

MAP 2:GLENOMRA WOOD SAC

CONSERVATION OBJECTIVESWOODLAND HABITATS

Map to be read in conjunction with the NPWS Conservation Objectives Document.

The mapped boundaries are of an indicative and general nature only. Boundaries of designated areas are subject to revision.Ordnance Survey of Ireland Licence No EN 0059216. © Ordnance Survey of Ireland Government of Ireland

Níl sna teorainneacha ar na léarscáileanna ach nod garshuiomhach ginearálta. Féadfar athbhreithnithe a déanamh ar theorainneacha na gceantarcomharthaithe. Suirbhéarachta Ordonáis na hÉireann Ceadúnas Uimh EN 0059216. © Suirbhéarachta Ordonáis na hÉireann Rialtas na hÉireann

±0 60 120 180 240 300Meters

SITE CODE:SAC 001013; version 3.02 . CO. CLARE

Legend

